Copper maran losing feathers

[Companihen]

Does anyone know why my copper maran hen looks like this? She is approximately 3 years old. She is not at the bottom of the pecking order. I have 3 copper marans about 3yo, 2 cream legbars coming up 2 yo and a lavender aracuna bantam who is 5yo... she is the top of the pecking order although tiny compared to the other hens. This has been happening gradually over the last 5 months. None of the other hens have this and she is fully feathered everywhere else so definitely not molting! Tia

 

[sourland]

Can you post a picture? Sounds as if she may be over groomed/feather plucked by a flock mate.

 

[Companihen]

Can you post a picture? Sounds as if she may be over groomed/feather plucked by a flock mate.

I've never noticed anyone plucking near her head... tail occasionally. Sorry not sure why photos didn't post with my original question.

 

[my spoiled chickens]

I know copper marans have been known to be feather peckers